Which of the following is the best definition of a scientific theory? a. a plausible answer to a scientific question that is used to guide research b. a highly tentative statement about the natural world that is likely to be significantly changed or discarded c. a broad, well-supported explanation of related observations or events d. a description of a natural phenomenon that is always observed to occur under specific conditions

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?

Match each symbol with its description.

Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary